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7.7-Magnitude Quake Strikes Off Flores, Damaging Buildings and Triggering Mass Evacuations

Sea-level monitoring will guide search-and-rescue as strong aftershocks keep risks high

Overview

  • A shallow magnitude-7.7 undersea quake hit off northern Flores early Saturday, with the USGS placing the epicentre about 68 km north-northwest of Ende at roughly 10 km depth.
  • Indonesia’s BMKG issued tsunami warnings for parts of eastern provinces and ordered coastal evacuations, and authorities later narrowed or lifted many alerts after tide gauges showed no major sea-level change.
  • Multiple strong aftershocks followed the mainshock, including tremors recorded around magnitude 5.6–6.1, sustaining the threat of further building collapse and landslides.
  • Video and field reports show structural damage in towns such as Maumere, Sikka and Ruteng, while casualty figures remain inconsistent across sources with officials reporting between one and two deaths and several injuries as assessments continue.
  • BNPB and local rescue teams have mobilised for search-and-rescue and damage surveys, and officials warn that the quake’s shallow depth and widespread use of vulnerable building materials raise the risk of more damage to communities on Flores.